Upper Gear Housing Seal Kit – Fits MerCruiser R, MR & Alpha One Gen I Drives (Replaces 26-32511A1, 18-2648) family-mercury-300hp a fuel pressure gauge is

a fuel pressure gauge is necessary to safely relieve and test system pressure

or compressed

and 4-Stroke F40

1 x Impeller (47-20268)

Upper Gear Housing Seal Kit – Fits MerCruiser R, MR & Alpha One Gen I Drives (Replaces 26-32511A1, 18-2648) family-mercury-300hp a fuel pressure gauge isUpper Gear Housing Seal Kit Fits MerCruiser R, MR & Alpha One Gen I Drives This comprehensive seal kit is designed for MerCruiser #1, R, MR, and Alpha One Gen I sterndrives manufactured from 1964 through 1991 (serial numbers 1684188 to D469858). It contains all the necessary gaskets, o rings, and seals to service the upper gear housing unit, preventing water intrusion and oil leaks. This kit is a direct replacement for multiple OEM and aftermarket